Commemoration of al-Biruni
National occasion Strength of evidence: Strong
Honouring al-Biruni, scientist, astronomer and author of al-Athar al-Baqiya.
Saturday September 4, 2027
Gregorian
September 4, 2027
Lunar Hijri
Rabiʻ II 3, 1449
Solar Hijri
Shahrivar 13, 1406